Pneumatic-tire protector.



No. 874,964. PATBNTED DEC. 31, 1907.

W. M00. JAMIESON.

PNEUMATIC TIRE PROTECTOR.

APPLICATION FILED JULY 11 1906.

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WILLIAM MCGQRD JAMI ESON, TE PAPA, NEAR ONEHUNGA, NEW ZEALAND.

PNEUMATIC-TIRE PROTECTOR.

Specification of Letters Patent. Application filed July 11. 1906. Serial No. 325.728.

Patented Dec.31,1907.

T 0 all whom it mag concern:

Be it known that 1, WI LIAM McOoRD JAMIESON, a subject of His Majesty the King of the United Kingdom of- Great Britain and Ireland, resident of Te Papa, near Onehunga, in the Provincial District of Auckland and Colony of New Zealand, engineer, have invented a Pneumatic-Tire Protector, of which the following is a specification.

This invention is projected to protect the pneumatic tires of motors bicycles and other vehicles from being punctured or otherwise destroyed. This purpose is attained by a box formation being fitted to and around the tire with corrugations inside the box which are in immediate touch with the tire and receive its impact.

radiating from center to rim B, the box D is so fixed to the rim B and pneumatic tire A that the inner sides of the box D fit to the pneumatic tire A which is also brought into contact with the corrugations E fixed within the box D. The box D is so constructed that a hard or solid rubber tire F is fixed to it out- Wardly which serves as the working tire which is in contact with the road or way the motor bicycle or vehicle passes over. The box D is preferably made in two halves which can be fastened together in the usual way by the eyes G and ,the pins or buttons H, one-half is. shownin Fig. 1 and the other half is left off the wheel to show the inside construction of Half spheres or projections that will act as transmitters may be used instead or in place vehicles.

of the corrugations E though when used they will not have the same beneficial effect. The corrugations E are'shown in Fig. 1 straight crosswise or at'right angles to the pneumatic tire A but they may be given a concave formation to fit the convex or outer side of the pneumatic tire A. The inside of the box D is shown in Fig. 2 as square but a slight deviation from'this shape will however be immaterial.

- Some of the advantages of this invention are that it does away with all puncturing of the pneumatic tire A, that the box D holds the sides of the pneumatic tire A in place so that it gives a better and deeper pneumatic action and at the same time does away with all cuttin of the sides of the pneumatic tire A, that t e corrugations E transmit to the pneumatic tire A, exactly the same action as the irregularities of the road would without injuring the pneumatic tire A and without destroying the buoyancy of the same, that the pneumatic tire A does not need to be blown'u to the same pressure as ordinarily,

and pre erably will not, to get the needful re-.

sistance thus doing away with the resent strain on the pneumatic tire A, and t at the ordinary jar is taken by the pneumatic tire A'on a more-extended surface which lessens the wear on it.

This protector can be used on any size of pneumatic tire and will be made to suit the different sizes and shapes of the same whether they be used for motors, bicycles or other Having fully described my invention what I desire to claim and secure by Letters Patent 1. In a pneumatic tire protector, the combination of a box having a transversely corrugated plate adapted to be fitted to said tire, and means for securing a solid tire to the box.

2. .In a pneumatic tire protector, the combifi'ation of a sectional box having a transversely corrugated plate adapted to be fitted to said tire, and means'for securing a sohd tire tothe box.

3. A pneumatic tire protector comprising a box having a transversely corrugated plate adapted to be fitted to said tire, said box furthermore constituting a felly for the reception of a solid tire.

4. A pneumatic tire protector comprising a sectional box having a transversely corrugated plate adapted to be fitted to said tire,

said box furthermore constituting a felly for Q emcee the reception of a solid tire, and means for gated plate adapted to be fitted to said tire, connecting the sections. said box having braces and being further- 5. A pneumatic tire protector comprising more provided with means for the reception a box having a transversely corrugated plate of a solid tire,;and means for connecting the adapted to be fitted to said tire, said box hav sections.

ing braces and being furthermore provided WILLIAM MOCORD JAMIESON. with means for the reception of a solid tire. Witnesses:.

6. A pneumatic tire protector comprising GEORGE WILLIAM BAsLEY,

a sectional box having a transversely corru- I HILDA MAY FRoNDE. 

